An officer will park on the north corner of Wiehle and Cassia. He will stand in the middle of the west-bound lanes (2) and about 100 yards from the apex of a hill obscuring him. I have a friend who lives on the corner of this intersection and he can report that an officer is there quite frequently during work hours. Also note that in general, Virginia Police do not perform total enforcement and will only ticket for speeds in excess of 14 mph over the posted limit. This arbitrary doctorine contributes to the danger as not all speeding vehicles will be stopped.